Classical gravitational spin-spin interaction
arXiv:gr-qc/0201094 · doi:10.1088/0264-9381/19/1/308
Abstract
I obtain an exact, axially symmetric, stationary solution of Einstein's equations for two massless spinning particles. The term representing the spin-spin interaction agrees with recently published approximate work. The spin-spin force appears to be proportional to the inverse fourth power of the coordinate distance between the particles.
six pages, no figures, journal ref:accepted for Classical and Quantum Gravity